EXAD has already gone up too much due to anticipation of the merger. When anticipation of an event results in a pre-event spike, the stock pulls back after the event.
EXAD is going to sink starting NOW.
SELL while you can!
99% of penny stocks are pump and dumps, yet 100% of penny stocks pretend to be in the 1%. Contracts, patents, mergers, partnerships, and other such news are usually "too good to be true" and should be looked at in detail. The source should also be vetted.